Neoplasms

All Conditions

Nervous System Diseases

Rare Diseases

Glioblastoma

Brain Neoplasms

Gliosarcoma

Astrocytoma

Glioma

Neoplasms, Neuroepithelial

Neuroectodermal Tumors

Neuroectodermal Tumors, Primitive

Neoplasms, Germ Cell and Embryonal

Neoplasms by Histologic Type

Neoplasms, Glandular and Epithelial

Neoplasms, Nerve Tissue

Neuroepithelioma

Antineoplastic Agents

All Drugs and Chemicals

Molgramostim

Sargramostim

Temozolomide

Rindopepimut

Antineoplastic Agents, Alkylating

Alkylating Agents

Immunologic Factors

Antineoplastic Agents, Immunological

Two intradermal injections two weeks apart, followed by monthly injections until tumor progression or intolerance.

Each dose will be 0.8 mL containing approximately 500 mcg CDX-110 and 150 mcg GM CSF.

Rindopepimut (CDX-110) with GM-CSF

150 to 200 mg/m2 for 5 days during each 28-day cycle for a minimum of six cycles or a maximum of 12 cycles, or until intolerance or progression.

Two intradermal injections two weeks apart, followed by monthly injections until tumor progression or intolerance. Each dose will be 0.8mL containing approximately 100mcg of KLH.

This 2-arm, randomized, phase III study will investigate the efficacy and safety of the addition of rindopepimut (an experimental cancer vaccine that may act to promote anti-cancer effects in patients who have tumors that express the EGFRvIII protein) to the current standard of care (temozolomide) in patients with recently diagnosed glioblastoma, a type of brain cancer.

All patients will be administered temozolomide, the standard treatment for glioblastoma. Half the patients will be randomly assigned to receive rindopepimut and half the patients will be randomly assigned to receive a control called keyhole limpet hemocyanin.

Patients will be treated in a blinded fashion (neither the patient or the doctor will know which arm of the study the patient is on). Patients will be treated until disease progression or intolerance to therapy and all patients will be followed for survival.

The purpose of this research study is to find out whether adding an experimental vaccine called rindopepimut (also known as CDX-110) to the commonly used chemotherapy drug temozolomide can help improve the life expectancy of patients with newly diagnosed, resected EGFRvIII positive glioblastoma.

The duration of participation in this study may be up to 5 years. After you are screened and enrolled in the study, you will be administered temozolomide and either rindopepimut/GM-CSF or KLH until either disease progression or intolerance to the medications. If your tumor progresses while on this study, your doctor may treat you with other therapies that are not part of the study.

Phase III Study of Rindopepimut/GM-CSF in Patients With Newly Diagnosed Glioblastoma

An International, Randomized, Double-Blind, Controlled Study of Rindopepimut/GM-CSF With Adjuvant Temozolomide in Patients With Newly Diagnosed, Surgically Resected, EGFRvIII-positive Glioblastoma

The primary efficacy endpoint of Overall Survival is defined as the number of months from randomization to the date of death (whatever the cause), and will be censored for patients who remain alive at completion of the study for patients with a gross total resection (\~n=374). The overall survival of patients will be monitored and compared between the two study arms until the end of the study.

Compare progression-free survival between the two treatment arms

Safety and tolerability will be measured by comparing the two arms in regards to vital sign measurement, physical and neurological examination, adverse events reporting, ECOG performance status, and EORTC core Quality of Life Questionnaire

Celldex Therapeutics

Symptoms and General Pathology

Recurrence

Bevacizumab

Antibodies

Antibodies, Monoclonal

Angiogenesis Inhibitors

Immunoglobulins

Endothelial Growth Factors

Mitogens

Growth Inhibitors

About half of the patients who have never received treatment with bevacizumab will receive rindopepimut/GM-CSF in a blinded fashion in combination with bevacizumab.

About half of the patients who have never received treatment with bevacizumab will receive KLH in a blinded fashion in combination with bevacizumab.

Patients with progressive disease while currently on or within two months after discontinuing bevacizumab will be administered rindopepimut/GM-CSF while continuing (or restarting if they had stopped bevacizumab).

A vascular endothelial growth factor (VEGF)-specific humanized monoclonal antibody angiogenesis inhibitor. Infusions of 10 mg/kg of bevacizumab will begin on day 1 and will be administered every two weeks until progression of disease or intolerance during the treatment period.

Rindopepimut/GM-CSF will initially be given three times, two weeks apart, followed by monthly injections until tumor progression or intolerance. Each dose will be 0.8 mL containing approximately 500 mcg CDX-110 and 150 mcg GM-CSF.

KLH will initially be given three times, two weeks apart, followed by monthly injections until tumor progression or intolerance. Each dose will be 0.8 mL containing approximately 100 mcg of KLH.

The purpose of this research study is to find out whether adding an experimental vaccine called rindopepimut (also known as CDX-110) to the commonly used drug bevacizumab can improve progression free survival (slowing the growth of tumors) of patients with relapsed EGFRvIII positive glioblastoma.

This Phase II study will enroll patients into three groups. Group 1 are patients who have never been treated with bevacizumab. These patients will be randomly assigned to receive either rindopepimut/GM-CSF or KLH, each along with bevacizumab. Treatment assignment for Group 1 will be blinded. Group 2 and Group 2C patients are those who are refractory to bevacizumab (experienced recurrence or progression of glioblastoma while on bevacizumab or within 2 months of discontinuing bevacizumab). These patients will all receive rindopepimut/GM-CSF along with bevacizumab. Patients will be treated until disease progression or intolerance and all patients will be followed for survival. Patients may be treated with other therapies that are not part of the study after discontinuing treatment with the study vaccine.

A Study of Rindopepimut/GM-CSF in Patients With Relapsed EGFRvIII-Positive Glioblastoma

A Phase II Study of Rindopepimut/GM-CSF in Patients With Relapsed EGFRvIII-Positive Glioblastoma

Evaluate the antitumor activity of rindopepimut in adult patients with relapsed glioblastoma, as measured by the progression-free survival rate at 6 months post-Day 1 (PFS 6).

Evaluate the anti-tumor activity of rindopepimut in adult patients with relapsed glioblastoma, as measured by the objective response rate (ORR) for patients with measurable disease at study entry.

Safety and tolerability will be evaluated by comparing the treatment regimens in regards to vital sign measurements, physical and neurological examinations, adverse events reporting, and Karnofsky performance status

Evaluated by comparing the treatment regimens for anti-tumor activity, including objective response rate, overall progression free survival (PFS), and overall survival (OS) for Groups 1 and 2; and PFS6, overall PFS, and OS for Group 2C.

Characterize the EGFRvIII specific immune response to rindopepimut.

Study title	NCT ID	Conditions	Interventions	Eligibility	Organization
Phase III Study of Rindopepimut/GM-CSF in Patients With Newly Diagnosed Glioblastoma	NCT01480479	Glioblastoma Small Cell Glio... Giant Cell Glio... Gliosarcoma Glioblastoma Wi...	Rindopepimut (C... Temozolomide KLH	18 Years -	Celldex Therapeutics
A Study of Rindopepimut/GM-CSF in Patients With Relapsed EGFRvIII-Positive Glioblastoma	NCT01498328	Glioblastoma Small Cell Glio... Giant Cell Glio... Gliosarcoma Glioblastoma Wi... Recurrent Gliob... Relapsed Gliobl...	Bevacizumab Rindopepimut (C... KLH	18 Years -	Celldex Therapeutics
A Study of Rindopepimut/GM-CSF in Patients With Relapsed EGFRvIII-Positive Glioblastoma	NCT01498328	Glioblastoma Small Cell Glio... Giant Cell Glio... Gliosarcoma Glioblastoma Wi... Recurrent Gliob... Relapsed Gliobl...	Bevacizumab Rindopepimut (C... KLH	18 Years -	Celldex Therapeutics

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